Many children of immigrants are more likely to move within the country of settlement than native-born youth. This so-called internal mobility during childhood is a potentially stressful life event which may have adverse consequences later in life. In the ERC-funded  MYMOVE project, we study how moving as a child influences the health, well-being, and family formation of migrants and natives later in life. This is done by using longitudinal population register data and survey panel data from across Europe.